Sediment-transport (wind) experiments in zero gravity

Iverson, J., Gillette, D., Greeley, R., Lee, J., Mackinnon, I.D.R., Marshall, J., Nickling, W., Werner, B., White, B., & Williams, S. (1986) Sediment-transport (wind) experiments in zero gravity. In Space Station Planetology Experiments (SSPEX), NASA Johnson Space Center, Flagstaff, Arizona, USA.

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Abstract

The carousel wind tunnel (CWT) can be a significant tool for the determination of the nature and magnitude of interparticlar forces at threshold of motion. By altering particle and drum surface electrical properties and/or by applying electric potential difference across the inner and outer drums, it should be possible to separate electrostatic effects from other forces of cohesion. Besides particle trajectory and bedform analyses, suggestions for research include particle aggregation in zero and sub-gravity environments, effect of suspension-saltation ratio on soil abrasion, and the effects of shear and shear free turbulence on particle aggregation as applied to evolution of solar nebula.

Impact and interest:

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ID Code: 58809
Item Type: Conference Paper
Refereed: Yes
Additional Information: SEE N86-27136 17-88
Keywords: sediment transport, low gravity experiments, aeolian environment, transport effects, space station, aeolian tubes, planetology, sediments
Subjects: Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > GEOLOGY (040300) > Extraterrestrial Geology (040302)
Divisions: Current > Institutes > Institute for Future Environments
Deposited On: 10 Apr 2013 23:22
Last Modified: 12 Aug 2013 01:28

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